公开(公告)号：US09013392B2

公开(公告)日：2015-04-21

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。

公开(公告)号：US20150117070A1

公开(公告)日：2015-04-30

申请号：US14184648

申请日：2014-02-19

Applicant: Novatek Microelectronics Corp.

Inventor： Ying-Hsiang Wang ,  Che-Li Lin ,  Chih-Jen Yen

IPC: H02M3/335

CPC classification number: H02M3/33561 ,  H02M3/335 ,  H02M3/33569 ,  H02M3/33576 ,  H02M3/33592 ,  H02M2001/0006

Abstract: An AC-DC converting apparatus and operating method are provided. The AC-DC converting apparatus includes a transformer, a first energy storage unit, a first output switch, a second energy storage unit, a second output switch and a secondary-side control module. The transformer includes a primary-side winding and a secondary-side winding. The first output switch is coupled between the secondary-side winding and the first energy storage unit. The second output switch is coupled between the secondary-side winding and the second energy storage unit. The secondary-side control module monitors the first energy storage unit and the second energy storage unit, and decides time length of a conduction period of the first output switch and the second output switch according to the monitoring result.

Abstract translation: 提供AC-DC转换装置和操作方法。 AC-DC转换装置包括变压器，第一能量存储单元，第一输出开关，第二能量存储单元，第二输出开关和次级侧控制模块。 变压器包括初级侧绕组和次级侧绕组。 第一输出开关耦合在次级侧绕组和第一能量存储单元之间。 第二输出开关耦合在次级侧绕组和第二能量存储单元之间。 次级侧控制模块监视第一能量存储单元和第二能量存储单元，并且根据监视结果确定第一输出开关和第二输出开关的导通周期的时间长度。

公开(公告)号：US20140043313A1

公开(公告)日：2014-02-13

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。